The RAM-B-108U consists of a 1" diameter rubber ball connected at a right angle to a v-shaped base, double socket arm and 2.5" base that contains the universal AMPs hole pattern. The mount is designed with a RAM 1" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. 

Rail Dimensions:
1.0" to a maximum of 2.1" in diameter 

Included in Kit:
(1) QTY 6" long metal strap
(1) QTY 8" long metal strap
(1) QTY 5.5" rubber strip that supports the metal straps to avoiding scratching or marking of the rail.

Material: 
Powder Coated Marine Grade Aluminum 

Ball Size:
1" Rubber Ball "B" Size 

Mounting Instructions:
To mount the base, place the saddle shaped plate on the rail then wrap the metal clamp strap around the rail and plate. Tighten the screw knob on the metal strap with a screw driver until the strap has a firm hold on the rail. The RAM-B-108U is an alternative mounting base for Beechcraft airplanes with a “throw over yoke”. 

Note: 
The "U" in the part number reflects product packaged in poly bag